Reversible seat.



No. 645,609. Patented Mar. 20, I900.

' w. L. SCHELLENBACH.

REVERSIBLE SEAT.

(Application filed July 22, 1899.)

(N0 Mudel.)

NITED STATES PATENT EEIcE.

WILLIAM L. soHELLENBAoH, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THEHALE & KILBURN MANUFACTURING ooMPANY, or sAME PLACE.

REVERSIBLE SEAT.

SPECIFICATION forming part of Letters Patent No. 645,609, dated March20, 1900.

Application filed July 22, 1899.

To aZZ whom it may concern:

Be it known that I, W LLIAM L. S'oHELLEN- BACE, of the city and countyof Philadelphia, State of Pennsylvania, have invented an Improvement inReversible Seats, of which the following is a specification.

My invention relates to reversible seats; and it consists of theimprovements which are fully set forth in the following specificationand are shown in the accompanying drawings.

It is one object of my invention to provide a cheap and efficientconstruction for effecting the reversal of the seat-back of a car-seator other seat structure.

It is another object of my invention to dispense entirely with the usualshifting side arms such as are'employed with shifting and reversibleseat-backs, thus reducing the number of parts and leaving the ends ofthe seat free and unobstructed.

These objects I accomplish by the em ployment of independent andseparately-acting pivotal connections between each side of the seat-backand one side of the seat cushion frame, which are so arranged that whenthe seat-back is in one position one set of pivotal connections act tosupport the seat-back while the other set are outof action. In reversingthe seat-back it is swung upon these pivotal connections as a fulcrumuntil the parts of the pivotal connections at the other side of theseat-back are brought into operative connection with the parts of thepivotal connections at the other side of the seatcushion frame, when theseat-back is lifted into reversed position on this second set of pivotalconnections, the first set then being out of action.

In the drawings, Figure 1 is a side elevation of a car-seat embodyingmyinvention. Fig. 2 is a similar view illustrating a different form.Fig. 3 is a view similar to Fig. 2, showing the seat-back reversed; andFig. .4 is a plan view ofa portion of the seat in the position shown inFig. 3 with parts in section.

A is the seat-cushion frame.

B is the base-frame, and O is the reversible seat-back. The seat-backand seat-cushion frame are provided with independent and separatelyacting pivotal connections be- Serial No. 724,773. (No model.)

tween each side of theseat-back and the adjacent side of theseat-cushion frame, constituting fulcra and fulcrum-seats between oneside of the cushion-frame and one side of the seat back and independentfulcra and fulcrum-seats between the other side. of the cushion-frameand the other side of the seatback. These fulcra and fulcrum-seats orpiv-,

otal connections are shown as notches and pins between the seat-cushionframe and seatback and are so arranged that in reversing the seat-backit swings upon one set of fulcra and fulcrum-seats at one side of theseat-cushion frame until the fulcra and fulcrum-seats at the other sideare brought into action,when it is lifted upon them as apivotalconnection.

In the drawings the seat-back G is shown provided at its ends withframes D, having notches d (1, located at the top and bottom. Theportions of the frames D which carry the notches cl d preferably projectforward, as shown.

e e are pins located one at each end on each side of the seat-cushionframe. Only one end of the seat is shown; but it is to be under;- stoodthat the construction at the other end is similar. The pins e e areadapted to engage the notches d d of the seat-back frame. When theseat-back is in the position shown in Fig. 1, the lower notches cl atthe ends of the seat-back engage-the pins 6 at one side of the ends ofthe seat-back-cushion frame. In this position the lower edge of theseat-back rests against the rear edge of the seat-cushion or its frame,and the back is firmly supported by the rear pins e. To reverse theseat-back, it is swung upon the pins 6 as a fulcrum, as is indicated bydotted lines in Fig. 1, until the'notches d engage the pins 0 at theopposite side of the seat-cushion frame and is then lifted upon the pins6 as a fulcrum until it occupies a position directly the opposite ofthat shown in Fig. 1.

The notches d d preferably have a transverse opening and longitudinalcontinuation, (like a bayonet-joint,) which serves to support theseat-back upon the pins and to pre vent accidental disengagement, whileenabling the seat-back to be readily detached by simply lifting theseat-back vertically and then transversely. With this construction inreversing the seat-back in the manner described the seat-back, whenmoved so that the opposite notches, as d, are brought into engagementwith the pins 6', is moved longitudinally to a slight extent before itis lifted to bring the pins 6- at the transverse openings of thebayonet-notches cl, so as to disengage them and simultaneously to bringthe pins 6' into the longitudinal portions of the notches d.

In the construction shown in Figs. 2, 3, and 4: instead of employing thenotches and pins at each side I employ the notches d and pins e at oneside only and connect the pins 6 with the other side of the seat-back bylinks E, pivoted to the pins eand connected with the opposite side ofthe seat-back by a pin-andslot connection ff, andemploysuitably-disposed lugs g on the ends of the seat-cushion frame.\Vith this construction when the seat-back is in one position, as shownin Fig. 2, it is supported by the notches d dand pins 6 e, as in theconstruction shown in Fig. 1; but when the seat-back is reversed it isswung upon the pins 6 e as pivots until the links E E assume alongitudinal position, resting upon the lugs g, as shown in Fig. 3, whenthe seatback is lifted upon the pins f as a pivot. The slots f permitthe necessary longitudinal movement to permit the engagement anddisengagement of the notches (Z d with the pins 6 e. The links E in thisconstruction form a permanent connection between the seat-back andseat-cushion frame. In this construction the links E, lugs g, andpin-and-slot connection ff form the pivotal connection between theseat-back and seat-cushion frame at one side of the seat, while thepivotal connection at the other side is formed by the notches d and pinsc, as in the construction shown in Fig. 1.

The details of construction that have been shown may be varied withoutdeparting from my invention.

Vhat I claim as new, and desire to secure by Letters Patent, is

1. In a seat structure, the combination of a seat-cushion frame, areversible seat-back, fulcra and fulcrum-seats between one side of thecushion-frame and one side of the seatback, and independent fulcra andfulcrumseats between the other side of the seat-cushion frame and theother side of the seat-back, the distance between the fulcra of onememher being substantially equal to the distance between thefulcrum-seats of the other member, whereby in reversing the scat-back,it is supported upon one set of fulcra and fulcrumseats until the otherset of fulcra and f ulcrumseats are brought into engagement and theseat-back is thereby transferred directly from one set of fulcra andfulcrum-seats to the other.

2. In a seat structure, the combination of a seat-cushion frame, areversible seat-back, a disconnectible pivotal connection between oneside of the seat-cushion frame and one side of the seat-back, a hingeconnection between that side of the seat-cushion frame and the oppositeside of the seat-back, and a support for the end of said hingeconnection at the other side of the seat-cushion frame adapted tosupport said hinge connection when the seat-back is reversed.

3. In a seat structure the combination of the seat-cushion frame, theseat-back, the pins 0 at the ends of the seat-cushion frame on one side,the notches cl at one side of the seat-back adapted to engage the pins6, the links E between the pins (2 and the opposite side of theseat-back, and the lugs g on the seat-cushion adapted to support thelinks E.

4. In a seat structure the combination-of the seat-cushion frame, theseat-back, the pins 6 at the ends of the seat-cushion frame on one side,the bayonet-notches d at one side of the seat-back and adapted to engagethe pins 0, the links E between the pins e and the opposite side of theseat-back and con-- the seat-back, and supports for said links adjacentto the other side of the seat-cushion frame.

In testimony of which invention I have hereunto set my hand.

\VM. L. SCI-IELLENBACII.

Witnesses:

HENRY S. HALE, THOMAS R. COOK.

IOO

